Yarn spinning and twisting apparatus.



A. E. RHOADES. YARN SPINNING AND TWISTING APPARATUS.

APPLICATION FILED .IUNE 4,1914.

' Patented June 20, 1916.

2 SHEETSSHEET l- Inventor.

Witnesses.

Tm: coLuMnm PLANOGRAPH c0., WASHINGTON, D. c.

A. E. RHOADES. YARN SPINNING AND TWISTINQ APPARATUS.

APPLICATION FILED JUNE 4,1914.

Patented June 20, 1916.

2 SHEETS-SHEET 2- 1,1 ,NNN.

Fig.3.

Inventor. Alon-g0 E.Rh0ud.es, y

Witnesses.

W& N Attys.

rm: coumam PLANOGRAPH co.. wAsmNuT N. n. c.

rear rim ALONZO E. BHOADES, OF HOPEDALE, MASSACHUSE-T'IEi, ASSIGNOR TODBAIPER COM- PANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

YARN SPINNING AND TWISTING APPARATUS.

Specification of Letters Patent.

Application filed June 4, 1914. Serial No. 843,068.

To all whom it may concern:

lie it known that I, ALONZO E. RHoAnEs, a citizen of the United States,and resident of I-lopedale, county of Worcester, State of Massachusetts,have invented an Improvement in Yarn Spinning and Twisting Apparatus, ofwhich the following description, in connection with the accompanyingdrawing, is a specification, like characters on the drawing representinglike parts.

This invention relates to improvements in yarn spinning and twistingapparatus designed to effect the winding of a preliminary portion orbunch of yarn upon a filling carrier such as a bobbin and thereafter tolay a main or service winding thereon, bobbins so wound beingparticularly adapted for use in the shuttles of automaticallyreplenishing feeler looms.

The preliminary winding or bunch lies in the path of the feeler andserves to actuate the same when the service winding is exhausted untilthe bunch has been reduced a predetermined amount so that it no longerengages the feeler, whereupon the latter is permitted to act to effect achange in the operation of the loom, such as the replenishment of theactive shuttle or the stoppage of the loom.

The preliminary winding or bunch also provides a sufficient quantity ofyarn to maintain the continuity of the filling when the transfer ofbobbins in the active shuttle takes hlace.

It is essential. to the proper operation of the loom that the yarn shalldraw off freely during the weaving operation and that the bunch shall beso built as not to obstruct the free drawing off of the yarn.

One of the objects of the present invention is to provide means forbuilding a bunch which will present no obstacle to the free running ofthe thread from the filling car rier and this is accomplished in thepreferred form of the invention illustrated herein by so constructingthe bunch that the initial winding is made with a minimum traverse, thesuccessive traverses thereafter being gradually increased during theupward movement toward the nose of the bobbin until the bunch has beenbuilt, thus forming a cone shaped bunch -which is merged into theservice winding which is afterward wound thereupon.

In building a bunch of the character above described it is found thatthe usual gain of the winding will construct too large a bunch beforethe usual service winding is com menced.

Another object of this invention therefore is to provide means forincreasing the gain during the bunch building operation which will begreater than the normal gain during the service winding but which willso effect the winding of the yarn upon the filling carrier that thebunch will be merged into the service winding without forming anysubstantial irregularity in the form of the filling carrier.

Other objects of the invention and the nature thereof will more fullyappear from the following description and the accompanying drawings andwill be particularly pointed out in the annexed claims.

In the drawings: Figure 1 is a front elevation of a portion of aspinning or twisting machine embodying my invention, Fig. 2 is a planview of a portion of the mechanism which efiects the traverse of theyarn upon the bobbin and controls the extent of such traverse, Fig. 3 isan enlarged detail view of the mechanism for controlling the gain intraverse during the bunch building operation and which is merged intothe usual traverse upon the completion of the bunch, Fig. 4: is a detailfront elevation of the carriage and detent mechanism which controls thegain in traverse during the bunch building operation and is renderedineffective during the service winding, and Fig. 5 is a detail sectionalview taken on lines a, Z), Fi 1, looking toward the right.

One embodiment of the invention is illustrated herein in connection witha spinning or twisting machine in which the ring rail is raised andlowered to effect a traverse of winding upon yarn carriers supported byrotatable spindles, but it will be understood that this invention isadapted to other forms of spinning, twisting, or winding machines andthat the spindles may be reciprocated vertically while the cooperatingmechanism, such as the ring rail, cap, or flier frame is permitted toremain stationary.

The spinning or twisting mechanism may be of a usual construction and asillustrated herein comprises a spindle rail 1 carrying a series ofrotatable spindles 2 adapted to support yarn receivers such as fillingcarriers, drawing or guide rolls 8 over which the yarn l is led to thespindles, a vertically reciprocating rail 4 provided with rings 5 andactu- 'ated through lifter rods 6 having enlarged lower ends or feet 7with which the ends of rocker arms 8, coeperate, said rocker arms beingprovided with upwardly extending arms 9 connected together by atransmitting link 10, said transmittinglinks being actuated by'segments,'not' shown, through the chains 11 and 12 andan intermediate controller,hereinafter to be described, which connect said segment with the builderarm.

The builder motion comprises a builder arm 13 pivotallymounted upon ashaft 14 and having a depending bracket 15 supporting, the shaft of apick wheel 16 which is provided with a worm meshing with a worm gear 17upon the shaft of a drum 18 upon v the chain 11 and is wound to causethe gain intraverseof'the winding upon the yarn receiver in the usualmanner.

The. builder arm 13 is provided with a laterally projecting cam follower19 which engages the face of a builder cam 20 which is mounted in theusual manner upon'the driven cam shaft 21. A pick pawl 22 suit ablysecured to the machine'frame engages the pick wheel 16 in the usualmanner.

,By the construction above described the rotationof the cam 20 impartsan oscillating movement to the builder arm '13 which throughtheconnections aforesaid causes the reciprocation of. the ring rall.

Upon each upward movement ofthe builder arm' the pick pawl 22v whichengages the teeth of the" pick wheel 16 serves to rotate said wheel andthrough its worm and gear 17to windup the chainll upon the drum 18, so

- that the lowest position of the ring rail during successivereciprocations becomes gradually higher and higher and causes theformation of a cone shaped base of the yarn upon the yarn receiver. Themechanism thus described is of the usual construction.

3 The present invention comprises the introduction of controllingmechanism between the chain 11 which leads to the drum 18 and the chain12 which leads to the segment. which operates the lifter rods, thecontrolling mechanism being adapted to cause afpreli'minary winding ofthe yarn upon the yarn receiverwithflan initially short, advancing andgradually increasing traverse until av predetermined,amount is wound andthereafter to effect 'a service winding of uniform traverse.

-The preferred form of. controller as illus- .trated herein includes anarm 23 mounted upon a Sblld24c projecting laterally from the lower endof a stand 25 which is suitably securedtothe underside of the mainframe, the arm 23 having at its upper end a laterally extended-lug 26upon which a lever 27 is pivotally mounted about midway of its length.

The lever 27 is connected to the chain 11 by a bridle consisting of arigid link 28 connecting the upper end of the lever with said chain 11and a flexible member such as a chain 29 connecting the lower end of thelever 27 with said chain or as shown in the drawing with a hooked end 30upon the member 28. The lever 27 is provided, preferably adjacent to itspivotal point, with a laterally extending car 31 having an aperture inwhich the end 32 of a hook 33 is pivotally mounted, said hook 33engaging the chain 12 which leads to the segment which operates thelifter. The lower portion of the lever 27 is adapted to engage a fulcrum34 at the end of a slot in the stand 25 as illustrated in Fig. 3.

At the commencement of the bunch building and winding operation themechanism is in the position illustrated in Figs. 1 and 3 at which timethe axis of the lever 27 is substantially in alinement with the axis ofthe arm 23 and the lower portion of the lever 27 in contact with thefulcrum 34 the chain 29 being slack. Upon the downward movement. of thebuilder arm the upper end of the lever 27 will be drawn toward the left(Figs. 1 and 3) through the rigid connection 28, the lever 27 beingrocked about the fulcrum 3% so that the movement of the arm 23 and thelink 33 and chain 12 will be very gradual thus causing a close windingupon the base of the yarn receiver. When the lever 27 has, rocked aboutthe fulcrum 24- until the chain 29 has become taut the movement of thearm 23 will be greatly increased since the bridle 28, 29 connecting thechain 11 with the lever 27 will at that time be in effect a rigidconnection, the winding upon the yarn receiver will therefore be morefreely distributed along the barrel of the yarn receiver.

When the builder arm is being raised the pick pawl 22 causes therotation of the pick wheel 16 and of the drum l8 winding up a portion ofthe chain 11 upon said drum so that when the builder arm reaches itshighest position and the lever 27 is restored to starting position saidlever will not quite reach the position shown in Figs. 1 and 3 and thenext winding upon the yarn receiver will start at a point slightlyhigher than that of the winding which next preceded it, thus forming aconical base for the winding upon the barrel of the yarn receiver. Uponeach successive reciprocation of the builder mechanism the chain 29 willbecome less slack until at the conclusion of the bunch buildingoperation it will be fully tightened and thereafter the bridle 28, 29will act as a rigid connection between the chain 11 and the lever 27 tocause a uniform traverse.

It will be observed that by reason of the lost motion introduced throughthe controlling mechanism above described the first winding upon thebobbin barrel will be a short traverse of close winding (Which may ormay not terminate in a traverse of looser winding.) The second traversewill start at a point slightly in advance of the base of the firsttraverse and will likewise comprise a close winding terminating in alooser winding upon the barrel of the filling carrier and so on untilthe bunch has been wound.

In the successive windings the amount of closely wound yarn willgradually be decreased and the amount of more loosely wound yarngradually increased as the slackness in the chain is being taken upuntil at the end of the bunch winding the chain 29 becomes taut and thewinding thereupon merges into the regular service winding upon the yarnreceiver.

It has been found in practice that the winding of a bunch in the manneraforesaid with the usual gain will cause the building of too large abunch and means have therefore been provided for causing a greater gainduring the preliminary winding, that is the winding of the bunch, thanthe gain in traverse during the service winding. This mechanism asdisclosed in the preferred embodiment of the invention illustratedherein comprises an additional pick pawl 35 which desirably may beadjustably secured at the end of an arm 36 carried upon a member 37pivotally mounted upon a stud 38 on the frame of the machine, and isadapted to be retained in engagement with the pick wheel during thebunch building and to be removed from such engagement during the layingof the service winding. By adjustably securing the pick pawl 35 upon thearm 36 it may be raised and low ered so as to cause a greater or lessrotation of the ratchet wheel 16 during the downward movement of thebuilder arm so that the extent of gain during the preliminary windingmay be readily adjusted. The means for thus controlling the pick pawl 35as illustrated herein comprises a projection 39 extended upwardly andlaterally from the member 37 and adapted to engage the base 40 of acutaway portion of a sliding carriage 11 which is adapted to be advancedas the chain 11 is wound up on the drum 18. he carriage 41 is providedwith a downwardly extending base or ledge 42 which is adapted to engagethe projection 39 when the preliminary winding is finished and by thedepression of said projection to rotate the member 37 upon its pivot 38and thereby remove the pick pawl 35 from engagement with the pick wheelduring the surface winding at which time the projection 39 restsupon thelower surface 42 of the carriage 11.

The carriage 41 desirably may comprise a narrow plate provided withslots43, 4a

adapted to receive studs i5, 16 projecting laterally from brackets 47,18 suitably secured to the main frame, the studs 45, 16 being providedwith springs L9, 50 adjustably secured thereon by suitable nuts andpressing against collars 51, 52 with sufficient force to retain thecarriage in any position to which it may be adjusted by the buildermechanism.

The end of the carriage 4.1 is desirably provided with a downwardlydepending car 53 to which is pivoted a member 54 which in turn isconnected to a rod 55 having an offset portion 56 to permit the end ofthe rod 55 to pass through a sleeve 57 which is pivotally secured to anear 58 projecting upwardly from boss 26 upon the end of the lever 23.

The end portion of the rod 55 is provided with collars 59 and 60 adaptedto be en gaged by said sleeve upon a forward and backward movementrespectively of the arm 23.

The collars 59 and 60 are adjustably secured upon said rod 55 in anysuitable manner and in operation are so located that the forwardmovement of the arm 23, or to the left will cause the sleeve 57 toengage the collar 59 and advance the carriage slightly upon eachoscillation of the arm 23 so that at the time the preliminary winding iscompleted the projection 39 will engage the lower surface 42 of thecarriage 41. The collar 60 will be so adjusted upon the rod that thebackward movement or movements to the right of the arm 23 will not causethe sleeve to engage said collar. The carriage will not therefore beretracted during the winding of the yarn upon the yarn receiver.

The operation of the device is as follows: The oscillation of thebuilder arm causes the raising and lowering of the ring rail to effectthe traverse of winding upon the yarn receivers which are carried by thespindles. By reason of the winding of the chain 11 upon the drum 18 thelever 27 will not quite return to the position previously occupied atthe commencement of the next preceding reciprocation so that the windingupon the yarn receiver will start at a point slightly farther upwardupon each reciprocation than upon the preceding traverse. This actionwill continue until the lower end of the lever 27 no longer engages thefulcrum 3st at which time the chain 29 will be taut and the bridlecomprising said chain 29 and the rigid member 28 will in effect be arigid connection between the chain 11 and the lever 27.

It will be. observed that during the laying of the preliminary windingor bunch the closely wound portion will be gradually decreased and theamount of relatively loose winding increased because of the gain as theslackness in the chain 29 is being taken up until the chain 29 remainstaut in the manall mechanisms falling 35" ner aforesaid. From this timeon there will be no variation in the gain and the service winding willbe laid in the usual manner.

At the commencement of the service winding the pick pawl 35 is removedfrom its engagement with the pick wheel 16 and the increase in gain intraverse is reduced to the usual amount instead of the double gain whichis effected during the bunch building operation. I

When the yarn receiver has been filled the machine may be stopped in theusual manner and the yarn receivers doffed. The chain upon the drum 18of the builder arm will thereupon be unwound and the parts restored tothe position illustrated in Figs. 1 and As the chain 11 is unwound fromthe drum and the weight of the lifter rail and other parts retracts thearm 23 the sleeve 57 will engage the collar 60 and restore the carriage41 to starting position.

It is to be understood that the embodiment of the invention disclosedherein is illustrative and is not restrictive and that variousmodifications may be made without departing from my invention. It isalso to be understood that this invention is adapted for use in otherconnections than for raising and loweringthe lifter rail of a spinningor twisting machine and that the following claims are intended toembrace within their scope regardless of the detail constructionsthereof or of the uses to which such mechanisms may be put.

Having thus described my inventionc what I claim as new and desiretosecure by Let ters Patent is:

1. In'an apparatus of the class described having a seriesvof spindlesadapted to support yarn receivers and cooperating winding mechanism,means'for causing relative reciprocatory 'movement therebetweenineluding a builder arm having a constant stroke and means operatedthereby to control therelative reciprocation of said members to effect apreliminary winding of yarn upon said yarn receivers with an initiallyshort advancing and gradually increasing traverse until a predeterminedamount is wound and thereafter to efi'eet a winding of uniform' traverseand adjustable means for causing a rapid uniform gain during thepreliminary winding and a decreased uniform gain during the servicewinding.

2. In an apparatus of the class described havinga series of rotatablespindles adapted to support yarn receivers, a ring rail and means forreciprocating the same, including a builder arm having a constantstroke, means operated thereby to control the reciprocation of the ringrail to efiect a preliminary winding of yarn upon theyarn renary windingwith a short ceivers with an initially short, advancing, and graduallyincreasing traverse until a predetermined amount is wound, andthereafter to eflect a service winding of uniform traverse and meanscooperating with said builder arm to impart a uniform gain during thepreliminary winding and a decreased uniform gain during the servicewinding.

3. In an apparatus of the class described having a series of rotatablespindles adapted to support yarn receivers, and cooperating windingmechanism, builder mechanism for causing a traverse of yarn upon saidyarn receivers, including a builder arm having a constant stroke, meansactuated thereby to cause a preliminary winding of gradually increasingtraverse and means cooperating with said builder arm to cause a uniformgain during the preliminary winding and a decreased uniform gain duringthe service winding.

4. In an apparatus of the class described having a series of spindlesadapted to support yarn receivers, a ring rail, rocker arms adapted toraise and lower said ring rail, a pivoted member connected to saidrocker arms, a lever pivotally mounted upon said pivoted member andhaving a fixed fulcrum, a constantly actuated builder arm, meansoperable thereby to cause said lever to raise and lower the ring rail toform a prelimigradually i11- creasing traverse and a service winding ofrelatively long and constant traverse, means for causinga uniform gainduring the preliminary winding and a decreased uniform gain during theservice winding.

5. In an apparatus of the class described having a series of rotatablespindles adapted to support yarn receivers, a ring rail, :1 pivotedmember connected to said ring rail, a lever pivotally mounted upon saidmember and having a stationary fulcrum, a builder arm having a drum,flexible means connected to said drum and having branches of differentlengths connected to the ends of said lever, means adapted to rotatesaid drum upon each downward movement of the builder and means forrotating said drum upon each upward movement of the builder arm during apreliminary winding and means for disengaging one of said drum rotatingmeans during the laying of a service winding.

6. In an apparatus of the class described 7 having a series of spindlesadapted to suplength connecting to the ends of said lever, a pick pawladapted to engage said ratchet upon each upward movement ofv the builderarm, a second pick pawl adapted to engage the said ratchet upon eachdownward movement of the builder arm and means for disengaging the lastmentioned pick pawl during a portion of the winding.

7. In an apparatus of the class described having a series of spindlesadapted to support yarn receivers, a ring rail, rocker arms adapted toraise and lower said ring rail, a pivoted member connected to saidrocker arms, a lever pivotally mounted upon said member and having astationary fulcrum, a constantly actuated builder arm having a drum withan actuating ratchet wheel, a flexible member having branches of unequallength connecting to the ends of said lever, a pick pawl adapted toengage said ratchet upon each upward movement of the builder arm, asecond pick pawl adapted to engage the said ratchet upon each downwardmovement of the builder arm and means actuated by said pivoted memberfor disengaging said pick pawl during the laying of a portion of thewinding.

8. A spinning machine comprising a frame, a series of rotatable spindlescarried thereby, a ring rail, rocker arms adapted to raise and lowersaid ring rail, a pivoted member attached to said frame and connected tosaid rocker arms, a lever pivotally mounted upon said member and havinga stationary fulcrum, a builder arm and means for actuating the samewith a constant stroke, a drum, a ratchet wheel for actuating the samesecured to said builder arm, a flexible member connected to said drumand having branches connected to the ends of said lever, a pawl adaptedto engage said ratchet upon each upward movement of the builder arm, asecond pawl, adapted to engage said ratchet upon each downward movementof the builder arm, pivotally mounted upon said frame and having anupwardly extending member, a carriage mounted upon said frame, meansconnecting said carriage to said pivoted member, and means upon saidcarriage adapted to engage the upwardly projecting member of said pawl.

9. In an apparatus of the class described comprising a series ofrotatable spindles, and cooperating winding mechanism, means foreffecting a preliminary winding and a service winding upon said yarnreceivers including a builder arm having a drum and a ratchet wheel foractuating the same, a pawl for rotating said ratchet wheel upon eachupward movement of the builder arm, a second pawl adapted to rotate saidratchet wheel upon each downward movement of the builder arm and havingan upwardly extended arm, a carriage actuated by the builder mechanismadapted to engage said upwardly extending arm at the completion of thepreliminary winding and thereby to remove and retain the last mentionedpawl from engagement with the ratchet wheel during the laying of theservice winding.

10. A spinning machine comprising a frame, a series of rotatablespindles carried thereby, a ring rail, a rocker arm adapted to raise andlower said ring rail, a pivoted member attached to said frame and connected to said rocker arm, a lever pivotally mounted upon said memberand having a stationary fulcrum, a builder arm and means for actuatingthe same with a constant stroke, a drum, a ratchet wheel for actuatingthe same secured to said builder arm, a flexible member connected tosaid drum and having branches of unequal length connected to the ends ofsaid lever, a pawl adapted to rotate said ratchet wheel upon each upwardmovement of the builder arm, a second pawl, adapted to rotate saidratchet wheel upon each downward movement of the builder arm, pivotallymounted upon said frame and having an upwardly extending arm, a carriagemounted upon said frame, means adjustably connecting said carriage tosaid pivoted member and means upon said carriage adapted to engage theupwardly projecting arm of said pawl.

11. In an apparatus of the class described having a series of spindles,a ring rail, and means for reciprocating the same, means operating tocontrol the reciprocation of said ring rail to effect a preliminarywinding of yarn upon yarn receivers on said spindles with an initiallyshort, advancing, and gradually increasing traverse until apredetermined amount is wound and to thereafter effect a service windingthereon with a uniform traverse and a uniform gain in traversecomprising a pivoted arm, a lever pivotally mounted thereon, a bridlehaving a rigid member and a flexible member connected to the upper andlower ends of said lever, the opposite ends of said members beingflexibly connected to the drum 011 said builder arm, a fulcrum for saidlever adapted to cause slackness in the flexible member of said bridleat the commencement of each traverse of preliminary winding to cause aslow movement of said ring rail but so positioned that as the slacknessof said flexible member is taken up and the more rapid final movement ofeach traverse of the preliminary winding will be successively increaseduntil the lever is removed from said fulcrum and the preliminary windingmerges into the service winding.

12. In an apparatus of the class described having a series of spindles,a ring rail, a builder mechanism and means for connecting said buildermechanism with said ring rail to reciprocate the latter, means operatingto control the amplitude of reciprocation of said ring rail comprising apivoted arm, a lever pivotally mounted upon said arm,-a bridle l avingarigid member and a flexible member connected to the upper and lower endsof said lever respectively and connected at the opposite ends to saidbullder arm and a fulcrum for sand lever adapted in cooperation Withsaid rigid mem- ALONZO E. RHOADES. lVitnesses:

ROBERT JAMIESON, DAVID OSGOOD.

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Washington, D. G.

